#Json

import json

json_str ='[{"name":"Byron","age":18},{"name":"Jennifer","age":18}]'

data = json.loads(json_str)# 反序列化，转换成python的数据类型，dict或者list

print(type(data))

print(data)

print(type(data[0]))

print(data[0]['name'])

data_json = json.dumps(data)# 序列化，转换成Json字符串

print(type(data_json))

print(data_json)